Title: Prediction of ultimate load carrying capacity of castellated beams by experimental and analytical investigation

Authors: Amol J. Mehetre; Rajashekhar S. Talikoti

Addresses: Civil Engineering Department, LGNSCOE, Nashik, SPPU Pune, Maharashtra, India ' Civil Engineering Department, R.H. Sapat College of Engineering, Management Studies and Research, Nashik, SPPU Pune, Maharashtra, India

Abstract: The aim of this research paper is to offer a new angle of web opening for hexagonal castellated beams to avoid failure due to shear stress concentration at the corner of the web opening and to investigate the ultimate load carrying capacity and deflection of hexagonal and rectangular castellated beams. This research is focused on hexagonal and rectangle openings of a castellated beam. This research includes testing of 18 castellated steel beams out of 21 numbers of steel beams and 3 solid beams to investigate ultimate load carrying capacity and deflection. The variables were considered are the angle of opening for hexagonal shape with 30°, 45° and 60°, and the equivalent length of opening for a rectangular shape. All the castellated beams were analysed by using ANSYS software and the results were compared with experimental outcomes. The experimental and ANSYS results for ultimate load carrying capacity and deflection shows good agreement. Experimental results showed that the castellated beam with 30° hexagonal web opening having 28.63% more load carrying capacity and 83.52% less deflection compared to the solid beam.

Keywords: ultimate load carrying capacity; angle of opening; length of opening; hexagonal and rectangular web opening; bending stress; shear stress; castellated beams; finite element analysis; ANSYS; deflection.

DOI: 10.1504/IJSTRUCTE.2021.114259

International Journal of Structural Engineering, 2021 Vol.11 No.2, pp.107 - 126

Received: 17 Oct 2019
Accepted: 27 Apr 2020

Published online: 15 Apr 2021 *

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